Algebraic formulae - OCR test questions - OCR

1

Is 4x + 7 = 15 an expression, equation or formula?

2

What is the value of p if y = -3 in the formula p = 8 + 3y?

3

What is the value of z if y = 2 in the formula 2z + 5y = 9?

4

What is the value of u if v = 10, a = 3 and t = 2 in the formula u = v + at?

5

Three sisters are given pocket money based on their ages. Ann is n years old, Beth is two years older and Caitlin is twice as old as Ann. Which is an expression showing the total amount of pocket money received by the girls?

6

The three angles of a triangle are x + 20, 2x + 50 and 3x - 10. Which of the answers is an equation showing this information?

7

The three angles of a triangle are x + 20, 2x + 50 and 3x - 10. What is the value of x?

8

How can you make x the subject of the formula 3x + 2y = 7?

9

How can you make x the subject of the formula \(\sqrt{2xy} = 4\)?

10

How can you make x the subject of the formula xy + 3 = xm?